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In recent years, text categorization based on machine learning is a widely used technology in the field of information retrieval and text mining and has gained many advances. This paper presents a survey on the up-to-date development in text categorization based on machine learning, including model, algorithm and evaluation and introduces some machine learning methods applied in text categorization.
The task scheduling is an important issue of grid workflow. This paper based on several existing scheduling algorithms, aims at the task characteristics of the grid workflow, and presents a heuristic scheduling algorithm and verifies the algorithm.
This article described the concepts of workflow, scientific workflow and three open-source scientific workflow engine, illustrated on how to establish and modify scientific workflow model. And analyzed the implementation of a scientific workflow process.
Access control is an important part of the scientific workflow security. Role-based access control mechanism is the effective technology to solve the problem of scientific workflow access control. This paper which is based on the business workflow in the role-based access control mechanism and the features of scientific workflow, establishes the scientific workflow access control mechanism based on...
Role-based access control (RBAC) model is receiving increasing attention as a generalized approach to access control. Temporal RBAC model is an extension on temporal constraint of the RBAC model. The problems of security status recovery with session priority were mainly explained, and the algorithms of choosing the reasonable terminating session set which will restore the system were proposed. The...
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